BMW 3-5 1983 - 1991.pdf - BMW schematy - robns

Body electrical systems 12•9

bent or damaged. The actuator can be

checked by applying battery power

momentarily. A discernible click indicates

that the solenoid is operating properly.

associated wiring. Removal of the motors and

regulators is described in Chapter 11.

Diagnosis is usually limited to simple

checks of the wiring connections and motors

for minor faults which can be easily repaired.

These include:

a) Check the electric window switches for

broken wires and loose connections.

b) Check the electric window fuse/and or

circuit breaker (where applicable).

c) Remove the door trim panel(s) and check

the electric window motor wires to see if

they’re loose or damaged. Inspect the

window mechanisms for damage which

could cause binding.

22 Wiring diagrams -

general information

21 Electric window system -

description and check

Since it isn’t possible to include all wiring

diagrams for every model year covered by this

manual, the following diagrams are those that

are typical and most commonly needed.

Prior to checking any circuit, check the

fuses and circuit breakers to make sure they’re

in good condition. Make sure the battery is

fully charged and check the cable connections

(see Chapter 1). Make sure all connectors are

clean, with no broken or loose terminals.

The electric window system operates the

electric motors mounted in the doors which

lower and raise the windows. The system

consists of the control switches, the motors,

window mechanisms (regulators) and

Colour codes

BK Black

BL Blue

BR Brown

GE Yellow

GN Green

GR Green or Grey

GY Grey

OR Orange

PK Pink

R Red

RS Pink

RT Red

SW Black

TN Tan

V Violet

VI Violet

W White

WS White

Y Yellow

12•10 Wiring diagrams

Typical starting, charging, horn, hazard flasher and direction indicators (1 of 4)

Wiring diagrams 12•11

Typical headlights/foglights and interior lights (2 of 4)

12•12 Wiring diagrams

Typical check control, electric mirrors, stop and parking light (3 of 4)

Wiring diagrams 12•13

Typical instrument cluster and cigar lighter (4 of 4)

BMW 3-5 1983 - 1991.pdf

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